Shuttle Platform Handoff for Reliable Robotic Item Sorting
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Solution Overview
Problem
Current robotic systems are inefficient and prone to errors when tasked with picking and sorting items of varying sizes, dimensions, shapes, weights, and stiffness in fulfillment centers, often requiring human intervention and resulting in labor-intensive and costly processes.
Innovation Solution
A robotic system comprising a robot with a picking arm and a shuttle device, where the shuttle has a platform that receives items from the robot's picking arm and moves them between a pick-up location and multiple end locations, enhancing reliability and efficiency by reducing the need for human intervention and allowing for shared responsibility between the robot's arm and the shuttle in carrying items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a single robot is tasked with completing the entire sorting process (recognizing, grasping, verifying, and placing items), then automation is achieved, but the process becomes time-consuming and requires long travel distances
Solution Approach 1:
The sorting system is divided into two independent but coordinated components: a robot station for item recognition and grasping, and a shuttle for transport and sorting. The robot completes picking tasks at a stationary location while the shuttle handles transportation to multiple sorting destinations, allowing parallel operation and eliminating the robot's need to travel to each sorting location.
Solution Approach 2:
The shuttle acts as an intermediary between the robot's picking location and the multiple sorting destinations. It receives items from the robot at the pick-up location and transports them to the appropriate end locations, thereby decoupling the robot from the sorting destinations and enabling efficient item distribution without compromising automation.
2Adaptability or versatility
If the robot travels long distances between the picking location and each sorting location, then items can be sorted to multiple destinations, but the process becomes time-consuming
Solution Approach 1:
The system separates the picking function (robot at stationary location) from the sorting and delivery function (shuttle traveling to multiple destinations). This segmentation allows the robot to remain stationary and efficient at picking, while the shuttle handles the time-consuming travel to multiple sorting locations in parallel with the robot's picking operations.
Solution Approach 2:
The robot and shuttle operate in a continuous coordinated cycle: the robot picks an item and places it on the shuttle, the shuttle transports it to a sorting location, returns to pick up the next item, while simultaneously the robot is already preparing the next pick. This continuous parallel operation eliminates idle time and maintains constant productivity.
3Extent of automation
If items are transferred from the picking arm to a distant sorting location, then sorting can occur, but items may unintentionally slip or be dropped requiring human intervention
Solution Approach 1:
The shuttle serves as a stable intermediary platform for item transfer. Items are transferred from the robot's picking arm to the shuttle's platform at a controlled,近距离 interface, and then the shuttle transports them to sorting locations. This intermediate platform provides stable support during transfer and transport, reducing the risk of items slipping or being dropped compared to direct long-distance transfer.
Solution Approach 2:
The system design anticipates potential item drops by positioning the pick-up location adjacent to the picking area and the robot. If an item is unintentionally dropped during transfer to the shuttle, it will fall back into the picking area or onto the platform rather than onto the floor, eliminating the need for human intervention to retrieve dropped items.
4Extent of automation
If a robot with a picking arm is used for picking and sorting, then automation is achieved, but the system becomes complex and costly
Solution Approach 1:
The system is segmented into two specialized components: a robot station optimized for picking operations and a shuttle optimized for transport and sorting. This segmentation allows each component to be simpler and more specialized rather than requiring a single complex robot to perform all functions, thereby reducing overall system complexity and cost.
Solution Approach 2:
The shuttle serves multiple functions: it transports items from the picking location to sorting destinations, acts as an intermediate platform for item transfer, and enables the robot to remain stationary. This multi-functionality reduces the need for additional specialized equipment, simplifying the overall system while maintaining automation.
Data Source
AI summary
A robotic system includes a robot having a picking arm to grasp an inventory item and a shuttle. The shuttle includes a platform adapted to receive the inventory item from the picking arm of the robot. The platform is moveable in at least a two-dimensional horizontal plane between a pick-up location located substantially adjacent to the robot and an end location spaced a distance apart from the pick-up location. The system improves efficiency as transportation of the item from the pick-up location to the end location is divided between the robot and the shuttle.